Aerobic Oxidation of Cyclic Amines to Lactams Catalyzed by PVP-Stabilized Nanogold

[摘要]：Gold nanoclusters stabilized by poly(N-vinyl-2-pyrrolidone) (Au:PVP) are active and selective catalysts under aerobic conditions for oxidation of cyclic secondary amines at the a-position of the nitrogen atom. The catalyst accelerates the formation of the imines by oxidation of the amines in aqueous solvent to afford the corresponding lactams.

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